# Subtraction Math Master 2 vs Alchimix

The clearest difference is in-app purchases: Alchimix at none against Subtraction Math Master 2's 1. Alchimix also leads on update cadence (every 4 days vs every 34 months). Subtraction Math Master 2's advantage is ads (none vs shown) and iOS requirement (8.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. Subtraction Math Master 2 sells 1 one-off in-app purchase. Alchimix asks for nothing beyond the download.

Subtraction Math Master 2 ships an update every 34 months, Alchimix every 4 days. The most recent releases landed on October 8, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Subtraction Math Master 2 | Alchimix |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (2 ratings)](https://appshunter.io/ios/app/subtraction-math-master-2/id806133567/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 34 months | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 260 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Peter Li](https://appshunter.io/developer/424298074) | [Joseph Pellerin](https://appshunter.io/developer/1603155217) |

## What reviewers say

### Subtraction Math Master 2

[App page](https://appshunter.io/ios/app/subtraction-math-master-2/id806133567)

This game challenges players to improve their subtraction speed and mental math skills. It features a "LEVEL UP" system that increases difficulty with correct answers and includes leaderboards and achievements for competitive play.

**Highlights:** 2-minute subtraction games, LEVEL UP difficulty system, Leaderboards and achievements, Intuitive user interface, Share results globally

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| REMOVE ADS (Subtraction 2) | $0.99 | one-time |


### Alchimix

[App page](https://appshunter.io/ios/app/alchimix-sorting-card-game/id6757678263)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Subtraction Math Master 2 free?

Subtraction Math Master 2 is free to download, with in-app purchases available.

### Is Alchimix free?

Alchimix is free to download, with no in-app purchases.

### Do Subtraction Math Master 2 or Alchimix have ads?

Alchimix shows ads; Subtraction Math Master 2 does not.

### Which is updated more often, Subtraction Math Master 2 or Alchimix?

Subtraction Math Master 2 ships an update every 34 months, and Alchimix every 4 days. Most recently, Subtraction Math Master 2 was updated on October 8, 2026 and Alchimix on October 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*